/* Copyright (C) 2013-2024 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

/* Test case for BZ #15493 */

#include <setjmp.h>
#include <signal.h>
#include <stdlib.h>

int main(void) {
  sigjmp_buf sj;
  sigset_t m;

  sigemptyset(&m);
  sigprocmask(SIG_SETMASK, &m, NULL);
  if (sigsetjmp(sj, 0) == 0) {
    sigaddset(&m, SIGUSR1);
    sigprocmask(SIG_SETMASK, &m, NULL);
    siglongjmp(sj, 1);
    return EXIT_FAILURE;
  }
  sigprocmask(SIG_SETMASK, NULL, &m);
  return sigismember(&m, SIGUSR1) ? EXIT_SUCCESS : EXIT_FAILURE;
}
